The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 12, 2002
Filed:
Oct. 24, 2000
Applicant:
Inventors:
Peter Stuart Excell, Heaton, GB;
Roger William Clarke, Bradford, GB;
Adam David Tinniswood, Poughkeepsie, NY (US);
Assignee:
University of Bradford, , GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 1/110 ;
U.S. Cl.
CPC ...
H01Q 1/110 ;
Abstract
A broadband antenna having closely spaced dipole antenna elements to form a log-periodic array, arranged normal to a signal feed network having a separate feed line for each of the dipole elements. The length of each feed line is selected to compensate for phase delays such that all frequency components of the radiated signal are in phase at a predetermined phase reference point of the antenna.